Evaluate.i4
A. -1
B. 1
C. i
D. -i
Answer: B
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Add or subtract as indicated. Express the answer as a single polynomial in standard form.(x2 + 1) - (4x2 + 7) + (x2 + x - 8)
A. -2x2 + x - 14 B. -2x2 + 8x - 7 C. -4x2 + x - 14 D. -3x2 + x - 14
Solve the problem.Assume that the price per unit d of a certain item to the consumer is given by the equation 
where x is the number of units in demand. The price per unit from the supplier is given by the equation 
where x is the number of units supplied. Find the equilibrium price and the equilibrium quantity.
A. equilibrium price: $35 per unit; equilibrium quantity: 50 units B. equilibrium price: $50 per unit; equilibrium quantity: 30 units C. equilibrium price: $20 per unit; equilibrium quantity: 50 units D. equilibrium price: $30 per unit; equilibrium quantity: 50 units
Multiply or divide.0.015 ÷ (-0.3)
A. -0.5 B. -0.005 C. -0.04 D. -0.05
Find the odds.Find the odds in favor of rolling a number less than 3 when a fair die is rolled.
A. 1 to 1 B. 2 to 3 C. 1 to 3 D. 1 to 2